Coil winding machine



Marh19,1935. L. E. PQQLE A 1' 1,995,105`

COIL WINDING MACHINE March 19, 1935. L E POQLE 1,995,105 con. WINDING MACHINE y Filed Jan. 26, 1933 17 Sheets-Sheet 2 258 l m o v sa 0 57 /9/ o@ C; e" .zu /95 4 55 l L no' awk@ MMM@ @7 W March 19, 1935. 1 E. PQOLE COIL WINDING MACHINE 17 Sheets-Sheet 5 Filed Jan. 26, 1935 March 19, 1935. 1 E. POOLE coIL wINDING MACHINE Filed Jan. 26, 1935 17 Sheets'-Sheet 4 Marchl 19, 1935. L. E. POOLE COIL WINDING MACHINE Filed Jan. 26, 1953 17 Sheets-Sheet 5 March 19, r1935. l.. E. `POOLE coIL wINDING MACHINE Filed Jan. 26, 1955 1'7 Sheets-Sheet 6 n March 19, 1935. I L, E, PQQLEl 9 .1,995,105 l COIL WINDNG MACHINE FiledV Jan. 26, 1933 17 SheMe'S-She-St '7 ogy. f6

March 19, 1935. L. E. POOLE l CQIL wINDING MACHINE March 19, 1935. L. E. POOLE 1,995,105

COIL WINDING MACHINE Filed Jan. 26, 1953 17 Sheets-Sheet 9 March 19, 1935. L, E. POOLE 1,995,105

coIrL WINDING MACHINE Filed Jan. 26, 1933 17 sheds-sheet 1o I March, 19, 1935.

| E. POOLE 1,995; 105

COIL WINDING MACHINE 1'7 Sheets-Sheet 11 Filed Jan. 26, 1955 March 19, 1935. l.. E. POOLE COIL WINDINGMACHINE Filed Jan. 26, 1933I 17 Sheets-Sheet l2 gmc/nio@ A March 19, 1935. E. POOLE COIL WINDIKNQ MACHINEl Filed Jan, 26, 1933 1'7 Sheets-Sheet 13 March 19, 1935. L. E. PQOLE COIL WINDING MACHINE Filed Jan. 26, 193:5

17 Sheets-Sheet l 4 I BY IINVE R W ATTORNEY] March 19, 1935. 1 E. POOLE 1,995,105

COIL WINDING MACHINE v I Filed Jan. 26, 1933 17 Sheefis-Shet 15 gwn-unict s. uw?

March 19, 1935. L. E. POOLE 1,995,105

COIL WINDING MACHINE Filed Jan. 26, 1953 17 Sheets-Sheepl March 19, 1935. 1 E. POOLE COIL WINDING MACHINE Filed Jan. 26, 1953 17 Sheets-Sheet 17 ATTQRN Ew INVENTOR krumm NEN UQQ Patentedv Mar. 19, 1935 PATENT oFElcE COIL WINDING MACHINE vLora. E. Poole, Anderson, Ind., assignor, by mesne assignments, to General Motorsv Corporation, Detroit, Mich., a corporation of Delaware Application January 26, 1933, Serial No. 653,602

136 Claims. (Cl. IL10-92.2)

Thisinvention relates to coil chines.

- It is among the objects of the present invention to provide certain improvements in a machine for winding a wire coil of a predetermined number of turns.

One object of the present invention is to prowinding mavide for inspection of 4a wound coil while on its winding form during the Winding of another coil on another winding form.

Another object is to provide for automaticejec? tion of an inspected coil.

' In order to accomplish the two previous objects there is provided a carriage supporting a turret on which a plurality of freely rotatable winding forms are mounted which may be.

brought successively into cooperative engagement with a driving Winding head and each of which is provided with meansvfor retaining a wound coil until it reaches an ejecting station in which the coil retaining means is rendered ineiective and the coil descends from the winding form by gravity.

Another object of the present invention is to provide .for severing a wound coil from a supply of wire in response to movement of the car riage in a direction to separate a winding form from the winding head.

Another object is to provide for feeding the severed end of the supply wire adjacent the winding head in response to movement of the carriage in a direction to separate a winding form from the winding head.

Another object is to providefor anchoring the fed end of the supply wire to a cooperating winding form and winding head in response to movement of the carriage in a direction to approach said Winding form to the winding head.

` Another object is to move a, wire shifter out of the path of movement of the severed end of a coil carried by a Winding form,`in response to movement ofthe carriage in a direction to separate said winding form from the winding head, and to return the wire shifter into engagement 45 with the supply wire immediately after the end X thereof has been anchored.

Another' object lis to prevent backing up of the Another object of the present invention is to in the direction o arrow 19 'in Fig.

tensioning of the supply wire during a winding operation.

Another object of the present invention is to provide for automatic braking of the rotating Winding head after disconnection from the power 5 driver and to return the winding head into a predetermined angular position prior to the separation of a winding form therefrom.

Further objects and advantages of the present invention will be apparent from the following de- 10 scription, reference being had to the accompanying drawings wherein a preferred embodiment of one form of the present invention is clearly shown. l

In the drawings Fig. 1 is a perspective view of the machine embodying the present invention.

Fig. 2 is another perspective View ofthe machine, showing the front thereof.

Fig.'3 is a side elevation of the machine look- 20 ing in the direction of varrow 3 in Fig. 2.

Fig. 4 is another side elevation of the machine looking in the direction of arrow 4 of Fig. 2.

Fig. 5 is a plan view of the machine.

Fig. 6 lis an enlarged sectional view taken on 25 the line 6 6 of Fig. 3.

Fig. 7 is a sectional view taken on the line 7 7 of Fig. 3.

Fig. 8 is a sectional view taken on the line 8 8 of Fig. 3.

Fig. 9 is a sectional view taken 9 9 of Fig. 5.

Fig. 10 is a sectional view taken substantially on'the line 10 10 of Fig. 5.

Fig. 11 is a. sectional view 11 11 of Fig. 10.

Fig. 12 is a sectional view taken `on the line 12 12 of Fig. 13.

Fig. 13 is a sectional View taken substantially along the line'13 13of Fig. 5.

Fig. 14 is a. sectional view taken on the line 14--14 of Fig. 13'. Fig.- 15 is^a fragmentary sectional view taken along'v the line l5 15 of Fig-14.

Fig. 16 is a cross-sectional view of one of a 45 plurality Vof winding forms. Fig. 17 is a'view of one of the windingforms looking in the direction of arrow 17 in Fig. 16.

Fig. 18 is a fragmentary sectional view of a cooperating winding form and winding head in 50 separated position.

Fig. 19 is a vi w of the winding 30 on Athe line taken on the line 35 head looking 18., Fig. 20 discloses the coil severing means andv ,t n

its actuator, the latter in section.

Fig. 21` is an enlarged fragmentary view of the coil .severing means, showing the same in operation. f

Fig. `22 is a sectional view taken on the line 5 22-22 0f Fig. 21.

Fig. 23 is an enlarged fragmentary view looking in the direction of arrow 23 in Fig. 2 0 and disclosing the relative positions of the winding 'ihead, the coil severing means and the wire shifter. I

Figs. 24 to 26 inclusive, are fragmentary per- 4spective views of part of the machine illustrating the cooperation between the wire feeding means and the wire shifter.

Fig. 27 is al transverse sectional view of the wire back-up preventing means.

`Fig. 28 is a sectional view taken substantially on the line 28-28 of Fig. 5.

Fig. 29 is a sectional view taken substantially along the line 29--29 of Fig. 5.

Figs. 30 and 31 are enlarged transverse sectional views ofthe wire feeding means in wire releasing and` wire gripping positions, respec tively.

Figs. 32- and 33 are enlarged sectional views takenfon the lines 32e-32 and 33--33, respectively, of Fig. 28.

` Fig. 34 is a view disclosing the wire tensioning device.

Fig. 35 is a sectional view taken on the line 35-35 of Fig. 34.

Figs. 36 to 38 inclusive, are diagrammatic views illustrating the operation of certain controls for various mechanisms of the machine.-

Fig. 39 is a chart illustrating the timed rela' tionship between the manual and automatic operation of various mechanisms during one complete winding operation of the machine.

A coil is wound in a winding groove formed by a power driven head and afdrivingly engageable form.

There is provided a plurality of winding forms which may be successively brought into driving engagement with. a winding head. The end of a supply wire is anchored between the winding head anda drivingly engaging winding form. A wire shifter properly locates the `individual turns of the coil in the-winding groove and the head rotation is automatically stopped upon a completed winding operation.. The next following winding form is then brought into driving engagement with the head by manual operation and in response to such operationthe wound coil is automatically severed from the supply wire, the wire shifter is automatically moved out of the path of movement of the severed end ofthe coil which is retained on the retracting wind- 1 ing form, the end of the supply wire is automatically fed ladjacent the winding head, the fed end of the supply wire is anchored between the winding head and a' cooperating winding form, the wire shifter is automatically returned into wire shifting position,. and a previously Wound`coil is automatically released from Aiti.L

r winding form and descends by gravity. The ma.-

chine is now ready for a. new winding operation ,and by a single manipulation the head starts to rotate again.

As best shown in Figs. A1, 2 and 34 a machine table 50 supports a frame Eil/.on which various `mechanisms are mounted such as coil forming means ,A, coil retaining means B, a wire feeding device C, wirev shifting means D, coil Vsevering device E, wire back-up preventing means F, wire tensioning device G and various controls for the various devices and mens'iust mentioned.

Coil forming means A Referring more particularly to Figs. 1 to 4 in-I elusive, the frame 51 Vcomprises parallel ways -52'for guiding a carriage53 for movement -in horizontal direction. Mounted on a shaft 54, which is rotatably but longitudinally immovably supported by the carriage 53,is a turret 56 which has three equi-angularly spaced peripheral flat surfaces 57. As best shown in Figs. 10, 16 and 18, a member 58 rests against each at surface 57 and is properly located thereon by a reduced Lcylindrical portion 59 which is press-fitted in an annular recess 60. A winding form 61 is rotatably supported within a ball bearing 62 which in turn is properly located in an annular recess defines one side wall 68 and the bottom 69 of the.

winding groove Awhich determines the shape of the coil, whereas winding head 66 defines the opposite side wall 70 of said winding groove. Each winding form has two recesses 68a`which receive one leg of a coil clip (not shown) which is attached to the coil after a Winding form has been separated from the winding head in order to preventv unreeling of the turns of the coil. A cylinder 67a surrounds member 58 and projects beyond the winding groove'formed by a winding form and the cooperating winding head. A As better shown in'Figs. 17 and 19, that part 71 of the winding form 61 which defines the bottom of the winding groove is rectangular and extending from the four corners thereof are spikes 72v which during driving engagement between the winding head and a winding form protrude into ap' ertures`73 of the winding head. These spikes around which the coil develops support only the corners of the coil thereby maintaining the same clear out of engagement with the rectangular part'71 f the winding form whereby the friction to be overcome at the ejection of the coil is reduced to a minimium. It will also be noticed from Fig. 18 that the rectangular portion 71 of a winding form during engagement of the wind# ing head extends into a correspondingly shaped recess 71a of the winding head thereby anchoring the end of a supply wire 74 in the manner disclosed in Fig. 18. It may be'stated in advance` that winding head 66 is the driver and a cooperating winding form lis driven thereby. In order to prevent a winding form from rotating while the same is out of driving engagement with the winding head, a spring urged friction memmittent resting positions by a. spring urged plunger, 78, located in the carriage 53 and deg 70 tailedly disclosed in Fig. 7. This spring urged plunger 78 has a beveled point 79 which is received in one of three beveled radial grooves 80 'of the turret. Carriage 53 is yieldingly urged toward the right as viewed in Fig. 3 and toward into locking position, and upon rotation of lever vided with aprejeeting sector-hize lug 299 whieh the carriage. l n upon rotation of lever 103 in `one direction the eral S1011 294 0f ring member 233- The from SUI- 40' shaft 185. Keyed as at 193 tothe clutchv member the left as viewed in Fig. 4 by two compression of a clutch shifter lever 203 (see also Figs. 5 and springs 81 and 85. Spring 81 surrounds a bar 10) which is pivoted-to. a column 204 carried y 82 4of the carriage andis interposed between a. by the table 50. Upon engagement of the clutch shoulder 83 of the carriage and a lug 84 of frame members, motion is transmitted from the elec- 51, and spring 85 surrounds a rod 86- carried by a tric motor 196 through chain 195, sprocket wheelI 5 lug 87 of the carriage 51 and is interposed between 194, clutch members 192, 191, shaft 185, bevel said lug and a shoulder 88 of the carriage. In ygears 184, 183, shaft 180 to the winding head. order to move the carriage toward the left as As best shown in Fig. 5, thefrec end of clutch iviewed in Fig. 3 and against the tendency of shifter lever 203 is connected by a pin 205 and springs 81 and 85, a shaft 89, journaled-in frame slot 206 with a piston rod 207 of a single acting 10 51 is provided with gear segments 99 and '100 piston received by a cylinder 208, mounted on .(see Figs. 3 and 4), which upon rotation of shaft table 50. A bearing bracket 209 mounted also on 89 in a counter-clockwise direction as viewed in table 50 slidably supports the free end of piston Fig. 3, mesh with racks 101 and 102, respectively, rod 207. Upon admission off fluid pressure to the of the carriage 53. Shaft 89 may be rotated in `cylinder the clutch will be engageiand upon diS- 15 l either direction by a manually operable lever charge of the fluid pressure from the cylinder, a

103. To prevent even the slighest movement of compression spring therein causesthe piston to a winding form away from the drivingly engaged move in a direction in which t0 cause diseneagewinding head 66, the carriage is positively locked ment 0f the Clutch.

against receding movement by a lever 104 (see Immediately upon disengagement of clutch 20 Fig. 1) pivoted to the carriage as at 105 and havmember 191 from clutch member 192, rotation of ing a pin '106 which upon-actuation by a cam clutch member 191 and therewith of shaft 185 slot 107 of a disc 108, mounted on rotatable shaft and the winding head driven thereby. is stopped 89 will be rocked into either one of two positions. by a brake 280. This brake Consists 0f a brake4 Upon rotation of shaft 89l in counter-clockwise member 281 loosely mounted upon a bushing 282 25 direction as viewed in Fig. 1, the cam slot 107 Which Surrounds Shaft 185, and a ring member will after a winding form has `been moved into 283 which is keyed to the brake member at 284'.

driving engagement wth the winding head, move and 285 and is provided with an arm 286 having lever 104 into va position in which its free end a forked end 287 which receives the shank 288 engages a beveled 'surface 109 0f a, bar 110 atof a bolt 289 secured to the table 50. Interposed 30 tached to the guidewys 52 'Upon rotation 0f bBWCeIl the forked end 0f am 86 and 'the table shaft 89 in the opposite direction, cam slot 107 50 and Surrounding the shank 288 0f bolt 289 is will rock lever 104 counterfclockwise as viewed-iin a compression Spring 290 which tends to main- Fig. 1 and out of engagement from beveled sur tain said forked end 0f arm 286 in engagement l face 109 and into alignment with a 'slot 111 in bar With the head 291 0f bOlil 239- Llgiiddinal 35 110. Upon continued clockwise rotation of shaft movement 0f ring member 283 and therewith of 89 the gear segments 99 and 100 will mesh with brake member 281 relative-to shaft 185 is prethe racks 101 and 102 respectively, and retract. vented by a plate member 292 attached-t0 table It follows from the preceding that 50, which has a 1118r 293 pIOdSCing info a' periphretracted carriage is moved into a position in face 295 9f bake member 231 iS provided with which an aligned Winding form on the turret a sector-like recess 296 immediately followed vby comes into drivingiengagement with the Winding a sector-like projection 297 (see Fig. 15), and the head and then the locking lever 104 is rocked Tear Surface 298 Qf Clutch member 191 is PTO" 103 in the opposite direction, locking lever 104 may be lceved by recess 296 of 913k? member is mst moved out 4of locking postionand then 281. While clutch member 191 is 1n driving enthe Carriage starts to retract. gagement with clutch member 192, the lug 299 Winding head 66 is suitably mounted on a h0ri of clutch member191 clears projection 297 of hentai shaft 13o. journaied in bali hearings 181 brake member 281- Upon movement Cf Clutch 50 and 182. provided by frame 51 as best shown in member 191 toward the 1eft-as VleWeci 111 F1g Fig. 10. The end of shaft opposite the wind- 13'1 e- 01111 of engagementwlth 01111911 member ing head is provided with a bevel gear 183 which 192 111g 299 of Clutch member 191 W111 11,1513 en meshes with anothe.l bevel gear 184 mounted on gage th? from? Surface 295 of brake member 281 a horizontal shaft 185 which is shown in Fig. 13 upon ahgnnent m1111119 recess 296 thereof W111 55 is journaled in ball bearings 1865187 and 188. drop 1113115111 and drlve brake member 28.1 and provided by frame 51 and a bearing bracket 189, therewlth Img member-283 'Such .rotatlon of respectively. Bearing bracket 189 is attached in the brake member and Img 'member 1S however any suitable manner to frame 51. Splined to yleidmgly resisted by compressmn sprmg 290 shaft 18s at et 19o is a shift-atie eiuteh member Whlch 11151 ems 111111 1mg member 23.3, and 60 191 which is adapted to cooperate with a. drivin'T parts connected therewlth come to rest then ex'- ciiitch me'nbei- 192 which is-freelv rotatable und; pands and retimme Img member arid parts. COQ-1 ietctledtheirebwiitili into-a certaintpsfiticliindwhil 81's l v i e e mine y ereengagemen o or e en 11111s afpket Whey* 194 11.111611 Lough a 51m-nder armzs with the beit head 291. 1f the seeter- 6r 1011116011011 195 mja'y be 11111611 from a 8111131119 like recess 296 in brake member 281 into which Source of 111901111111931 'www s111111 as. an C-ectnc during a braking operation the lug 299 of clutch 1119191' 196 (See mg- 21' Enqwlse movement 0f member 191 projects, were omitted, then the exdriving clutch member 192 is-prevcnted by a panding' Spring might return the ring member spacer 197 interposed between a shoulder 198 of shaft 185 and one. end of said cdutch member and a spacer 199 interposed between ball bearing 188 and the opposite end of said clutch member 192. Clutch member 191 is provided witha peripheral groove 200 adapted to receive pins 201 and 202,`

which ispasta desired position as can be readily understood. The reason for returning the winding head into a certain angular position after disengagement of the clutch will be more fully described later.

and partsconnected therewith into a position-L70 

